Malware Analysis Report

2025-05-28 14:54

Sample ID 240821-mpnsfaxeln
Target 3.exe
SHA256 cb0ce49811fc7dfa01b165bb3c7721c6f2e4148951e136e4ce3cfea6e877ff4d
Tags
discovery persistence vipkeylogger collection credential_access keylogger stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

cb0ce49811fc7dfa01b165bb3c7721c6f2e4148951e136e4ce3cfea6e877ff4d

Threat Level: Known bad

The file 3.exe was found to be: Known bad.

Malicious Activity Summary

discovery persistence vipkeylogger collection credential_access keylogger stealer

VIPKeylogger

Suspicious use of NtCreateUserProcessOtherParentProcess

Credentials from Password Stores: Credentials from Web Browsers

Accesses Microsoft Outlook profiles

Adds Run key to start application

Looks up external IP address via web service

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Program crash

Browser Information Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

outlook_office_path

outlook_win_path

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-21 10:38

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-21 10:38

Reported

2024-08-21 10:41

Platform

win7-20240705-en

Max time kernel

120s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\3.exe"

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yxphrieb = "C:\\Users\\Admin\\AppData\\Roaming\\Yxphrieb.exe" C:\Users\Admin\AppData\Local\Temp\3.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\3.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\3.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2724 wrote to memory of 5244 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\SysWOW64\WerFault.exe
PID 2724 wrote to memory of 5244 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\SysWOW64\WerFault.exe
PID 2724 wrote to memory of 5244 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\SysWOW64\WerFault.exe
PID 2724 wrote to memory of 5244 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\3.exe

"C:\Users\Admin\AppData\Local\Temp\3.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2724 -s 1760

Network

Country Destination Domain Proto
US 8.8.8.8:53 cdn.discordapp.com udp
US 162.159.135.233:443 cdn.discordapp.com tcp

Files

memory/2724-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

memory/2724-1-0x0000000000D40000-0x0000000000D5E000-memory.dmp

memory/2724-2-0x0000000074E40000-0x000000007552E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab5C93.tmp

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar5CB5.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/2724-37-0x00000000059E0000-0x0000000005AC8000-memory.dmp

memory/2724-38-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-49-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-47-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-45-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-43-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-41-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-39-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-67-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-79-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-89-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-101-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-100-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-97-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-95-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-93-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-91-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-87-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-85-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-83-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-81-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-77-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-75-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-73-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-71-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-69-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-65-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-63-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-61-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-59-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-57-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-55-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-53-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-51-0x00000000059E0000-0x0000000005AC2000-memory.dmp

memory/2724-1112-0x0000000005630000-0x000000000567C000-memory.dmp

memory/2724-1111-0x00000000052C0000-0x0000000005324000-memory.dmp

memory/2724-1110-0x0000000074E40000-0x000000007552E000-memory.dmp

memory/2724-1113-0x0000000005800000-0x0000000005854000-memory.dmp

memory/2724-1114-0x0000000074E40000-0x000000007552E000-memory.dmp

memory/2724-1116-0x0000000074E4E000-0x0000000074E4F000-memory.dmp

memory/2724-1117-0x0000000074E40000-0x000000007552E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-21 10:38

Reported

2024-08-21 10:41

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

145s

Command Line

C:\Windows\Explorer.EXE

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 652 created 3532 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\Explorer.EXE

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yxphrieb = "C:\\Users\\Admin\\AppData\\Roaming\\Yxphrieb.exe" C:\Users\Admin\AppData\Local\Temp\3.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 652 set thread context of 5684 N/A C:\Users\Admin\AppData\Local\Temp\3.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

Browser Information Discovery

discovery

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\3.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\3.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\3.exe

"C:\Users\Admin\AppData\Local\Temp\3.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4104,i,13995403245988825027,7033610968827661507,262144 --variations-seed-version --mojo-platform-channel-handle=4276 /prefetch:8

C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 cdn.discordapp.com udp
US 162.159.133.233:443 cdn.discordapp.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 233.133.159.162.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
US 158.101.44.242:80 checkip.dyndns.org tcp
US 8.8.8.8:53 242.44.101.158.in-addr.arpa udp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 152.67.21.104.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/652-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

memory/652-1-0x0000000000400000-0x000000000041E000-memory.dmp

memory/652-2-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-3-0x0000000006080000-0x0000000006168000-memory.dmp

memory/652-7-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-15-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-67-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-65-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-63-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-61-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-59-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-57-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-53-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-51-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-49-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-47-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-45-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-43-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-55-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-39-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-37-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-35-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-33-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-31-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-29-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-27-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-23-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-21-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-19-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-17-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-13-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-11-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-9-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-5-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-41-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-25-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-4-0x0000000006080000-0x0000000006162000-memory.dmp

memory/652-1076-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-1077-0x0000000006270000-0x00000000062D4000-memory.dmp

memory/652-1078-0x00000000062D0000-0x000000000631C000-memory.dmp

memory/652-1081-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-1084-0x00000000743CE000-0x00000000743CF000-memory.dmp

memory/652-1085-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-1083-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-1086-0x0000000006EA0000-0x0000000007444000-memory.dmp

memory/652-1087-0x00000000063D0000-0x0000000006424000-memory.dmp

memory/652-1088-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/652-1091-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5684-1092-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5684-1093-0x0000000000400000-0x0000000000448000-memory.dmp

memory/5684-1094-0x00000000052F0000-0x000000000538C000-memory.dmp

memory/5684-1095-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5684-1096-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/5684-1097-0x0000000006640000-0x0000000006802000-memory.dmp

memory/5684-1098-0x00000000064C0000-0x0000000006510000-memory.dmp

memory/5684-1099-0x0000000006810000-0x00000000068A2000-memory.dmp

memory/5684-1100-0x0000000006590000-0x000000000659A000-memory.dmp